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Commit dfd6ab08 by Alan Mishchenko
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New package to read/write a subset of Liberty for STA.

parent fba0552f
Showing with 863 additions and 211 deletions
src/map/scl/scl.c
......@@ -29,6 +29,7 @@ ABC_NAMESPACE_IMPL_START
static int Scl_CommandRead ( Abc_Frame_t * pAbc, int argc, char **argv );
static int Scl_CommandWrite( Abc_Frame_t * pAbc, int argc, char **argv );
static int Scl_CommandStime( Abc_Frame_t * pAbc, int argc, char **argv );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
......@@ -49,19 +50,8 @@ void Scl_Init( Abc_Frame_t * pAbc )
{
Cmd_CommandAdd( pAbc, "SC mapping", "read_scl", Scl_CommandRead, 0 );
Cmd_CommandAdd( pAbc, "SC mapping", "write_scl", Scl_CommandWrite, 0 );
Cmd_CommandAdd( pAbc, "SC mapping", "stime", Scl_CommandStime, 0 );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Scl_End( Abc_Frame_t * pAbc )
{
Abc_SclLoad( NULL, &pAbc->pLibScl );
......@@ -111,6 +101,7 @@ int Scl_CommandRead( Abc_Frame_t * pAbc, int argc, char ** argv )
// read new library
Abc_SclLoad( pFileName, &pAbc->pLibScl );
Abc_SclWriteText( "sizing\\scl_out.txt", pAbc->pLibScl );
return 0;
usage:
......@@ -177,6 +168,59 @@ usage:
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Scl_CommandStime( Abc_Frame_t * pAbc, int argc, char **argv )
{
int c;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF )
{
switch ( c )
{
case 'h':
goto usage;
default:
goto usage;
}
}
if ( Abc_FrameReadNtk(pAbc) == NULL )
{
fprintf( pAbc->Err, "There is no current network.\n" );
return 1;
}
if ( !Abc_NtkHasMapping(Abc_FrameReadNtk(pAbc)) )
{
fprintf( pAbc->Err, "The current network is not mapped.\n" );
return 1;
}
if ( pAbc->pLibScl == NULL )
{
fprintf( pAbc->Err, "There is no Liberty Library available.\n" );
return 1;
}
Abc_SclTimePerform( pAbc->pLibScl, Abc_FrameReadNtk(pAbc) );
return 0;
usage:
fprintf( pAbc->Err, "usage: stime [-h]\n" );
fprintf( pAbc->Err, "\t performs STA using Liberty library\n" );
fprintf( pAbc->Err, "\t-h : print the help massage\n" );
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
......
src/map/scl/scl.h
......@@ -46,9 +46,12 @@ ABC_NAMESPACE_HEADER_START
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/*=== scl.c =============================================================*/
extern void Abc_SclLoad( char * pFileName, void ** ppScl );
extern void Abc_SclSave( char * pFileName, void * pScl );
/*=== sclFile.c =============================================================*/
extern void Abc_SclLoad( char * pFileName, void ** ppScl );
extern void Abc_SclSave( char * pFileName, void * pScl );
/*=== sclTime.c =============================================================*/
extern void Abc_SclTimePerform( SC_Lib * pLib, void * pNtk );
ABC_NAMESPACE_HEADER_END
......
src/map/scl/sclFile.c
......@@ -25,13 +25,15 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
extern void Extra_PrintHex( FILE * pFile, unsigned Sign[], int nBits );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Binary I/O for numbers (int, word, float) and strings (char *).]
Synopsis [Binary I/O for numbers (int/float/etc) and strings (char *).]
Description []
......@@ -40,13 +42,13 @@ ABC_NAMESPACE_IMPL_START
SeeAlso []
***********************************************************************/
static inline void Abc_SclPutI_no_enc( Vec_Str_t * vOut, int Val )
static inline void Vec_StrPutI_ne( Vec_Str_t * vOut, int Val )
{
int i;
for ( i = 0; i < 4; i++ )
Vec_StrPush( vOut, (char)(Val >> (8*i)) );
}
static inline int Abc_SclGetI_no_enc( Vec_Str_t * vOut, int * pPos )
static inline int Vec_StrGetI_ne( Vec_Str_t * vOut, int * pPos )
{
int i;
int Val = 0;
......@@ -55,13 +57,13 @@ static inline int Abc_SclGetI_no_enc( Vec_Str_t * vOut, int * pPos )
return Val;
}
static inline void Abc_SclPutI( Vec_Str_t * vOut, int Val )
static inline void Vec_StrPutI( Vec_Str_t * vOut, int Val )
{
for ( ; Val >= 0x80; Val >>= 7 )
Vec_StrPush( vOut, (unsigned char)(Val | 0x80) );
Vec_StrPush( vOut, (unsigned char)Val );
}
static inline int Abc_SclGetI( Vec_Str_t * vOut, int * pPos )
static inline int Vec_StrGetI( Vec_Str_t * vOut, int * pPos )
{
unsigned char ch;
int i = 0, Val = 0;
......@@ -70,13 +72,13 @@ static inline int Abc_SclGetI( Vec_Str_t * vOut, int * pPos )
return Val | (ch << (7 * i));
}
static inline void Abc_SclPutW( Vec_Str_t * vOut, word Val )
static inline void Vec_StrPutW( Vec_Str_t * vOut, word Val )
{
int i;
for ( i = 0; i < 8; i++ )
Vec_StrPush( vOut, (char)(Val >> (8*i)) );
}
static inline word Abc_SclGetW( Vec_Str_t * vOut, int * pPos )
static inline word Vec_StrGetW( Vec_Str_t * vOut, int * pPos )
{
int i;
word Val = 0;
......@@ -85,7 +87,7 @@ static inline word Abc_SclGetW( Vec_Str_t * vOut, int * pPos )
return Val;
}
static inline void Abc_SclPutF( Vec_Str_t * vOut, float Val )
static inline void Vec_StrPutF( Vec_Str_t * vOut, float Val )
{
union { float num; unsigned char data[4]; } tmp;
tmp.num = Val;
......@@ -94,7 +96,7 @@ static inline void Abc_SclPutF( Vec_Str_t * vOut, float Val )
Vec_StrPush( vOut, tmp.data[2] );
Vec_StrPush( vOut, tmp.data[3] );
}
static inline float Abc_SclGetF( Vec_Str_t * vOut, int * pPos )
static inline float Vec_StrGetF( Vec_Str_t * vOut, int * pPos )
{
union { float num; unsigned char data[4]; } tmp;
tmp.data[0] = Vec_StrEntry( vOut, (*pPos)++ );
......@@ -104,7 +106,7 @@ static inline float Abc_SclGetF( Vec_Str_t * vOut, int * pPos )
return tmp.num;
}
static inline void Abc_SclPutD( Vec_Str_t * vOut, double Val )
static inline void Vec_StrPutD( Vec_Str_t * vOut, double Val )
{
union { double num; unsigned char data[8]; } tmp;
int i, Lim = sizeof(double);
......@@ -112,7 +114,7 @@ static inline void Abc_SclPutD( Vec_Str_t * vOut, double Val )
for ( i = 0; i < Lim; i++ )
Vec_StrPush( vOut, tmp.data[i] );
}
static inline double Abc_SclGetD( Vec_Str_t * vOut, int * pPos )
static inline double Vec_StrGetD( Vec_Str_t * vOut, int * pPos )
{
union { double num; unsigned char data[8]; } tmp;
int i, Lim = sizeof(double);
......@@ -121,19 +123,273 @@ static inline double Abc_SclGetD( Vec_Str_t * vOut, int * pPos )
return tmp.num;
}
static inline void Abc_SclPutS( Vec_Str_t * vOut, char * pStr )
static inline void Vec_StrPutS( Vec_Str_t * vOut, char * pStr )
{
while ( *pStr )
Vec_StrPush( vOut, *pStr++ );
Vec_StrPush( vOut, (char)0 );
}
static inline char * Abc_SclGetS( Vec_Str_t * vOut, int * pPos )
static inline char * Vec_StrGetS( Vec_Str_t * vOut, int * pPos )
{
char * pStr = Vec_StrEntryP( vOut, *pPos );
while ( Vec_StrEntry(vOut, (*pPos)++) );
return Abc_UtilStrsav(pStr);
}
static inline void Vec_StrPutC( Vec_Str_t * vOut, char c )
{
Vec_StrPush( vOut, c );
}
static inline char Vec_StrGetC( Vec_Str_t * vOut, int * pPos )
{
return Vec_StrEntry(vOut, (*pPos)++);
}
/**Function*************************************************************
Synopsis [Reading library from file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static unsigned Abc_SclHashString( char * pName, int TableSize )
{
static int s_Primes[10] = { 1291, 1699, 2357, 4177, 5147, 5647, 6343, 7103, 7873, 8147 };
unsigned i, Key = 0;
for ( i = 0; pName[i] != '\0'; i++ )
Key += s_Primes[i%10]*pName[i]*pName[i];
return Key % TableSize;
}
int * Abc_SclHashLookup( SC_Lib * p, char * pName )
{
int i;
for ( i = Abc_SclHashString(pName, p->nBins); i < p->nBins; i = (i + 1) % p->nBins )
if ( p->pBins[i] == -1 || !strcmp(pName, SC_LibCell(p, p->pBins[i])->name) )
return p->pBins + i;
assert( 0 );
return NULL;
}
void Abc_SclHashGates( SC_Lib * p )
{
SC_Cell * pCell;
int i, * pPlace;
assert( p->nBins == 0 );
p->nBins = Abc_PrimeCudd( 5 * Vec_PtrSize(p->vCells) );
p->pBins = ABC_FALLOC( int, p->nBins );
Vec_PtrForEachEntry( SC_Cell *, p->vCells, pCell, i )
{
pPlace = Abc_SclHashLookup( p, pCell->name );
assert( *pPlace == -1 );
*pPlace = i;
}
}
int Abc_SclCellFind( SC_Lib * p, char * pName )
{
return *Abc_SclHashLookup( p, pName );
}
/**Function*************************************************************
Synopsis [Reading library from file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Abc_SclReadSurface( Vec_Str_t * vOut, int * pPos, SC_Surface * p )
{
Vec_Flt_t * vVec;
int i, j;
for ( i = Vec_StrGetI(vOut, pPos); i != 0; i-- )
Vec_FltPush( p->vIndex0, Vec_StrGetF(vOut, pPos) );
for ( i = Vec_StrGetI(vOut, pPos); i != 0; i-- )
Vec_FltPush( p->vIndex1, Vec_StrGetF(vOut, pPos) );
for ( i = 0; i < Vec_FltSize(p->vIndex0); i++ )
{
vVec = Vec_FltAlloc( Vec_FltSize(p->vIndex1) );
Vec_PtrPush( p->vData, vVec );
for ( j = 0; j < Vec_FltSize(p->vIndex1); j++ )
Vec_FltPush( vVec, Vec_StrGetF(vOut, pPos) );
}
for ( i = 0; i < 3; i++ )
p->approx[0][i] = Vec_StrGetF( vOut, pPos );
for ( i = 0; i < 4; i++ )
p->approx[1][i] = Vec_StrGetF( vOut, pPos );
for ( i = 0; i < 6; i++ )
p->approx[2][i] = Vec_StrGetF( vOut, pPos );
}
static void Abc_SclReadLibrary( Vec_Str_t * vOut, int * pPos, SC_Lib * p )
{
int i, j, k, n;
int version = Vec_StrGetI( vOut, pPos );
assert( version == ABC_SCL_CUR_VERSION ); // wrong version of the file
// Read non-composite fields:
p->lib_name = Vec_StrGetS(vOut, pPos);
p->default_wire_load = Vec_StrGetS(vOut, pPos);
p->default_wire_load_sel = Vec_StrGetS(vOut, pPos);
p->default_max_out_slew = Vec_StrGetF(vOut, pPos);
p->unit_time = Vec_StrGetI(vOut, pPos);
p->unit_cap_fst = Vec_StrGetF(vOut, pPos);
p->unit_cap_snd = Vec_StrGetI(vOut, pPos);
// Read 'wire_load' vector:
for ( i = Vec_StrGetI(vOut, pPos); i != 0; i-- )
{
SC_WireLoad * pWL = Abc_SclWireLoadAlloc();
Vec_PtrPush( p->vWireLoads, pWL );
pWL->name = Vec_StrGetS(vOut, pPos);
pWL->res = Vec_StrGetF(vOut, pPos);
pWL->cap = Vec_StrGetF(vOut, pPos);
for ( j = Vec_StrGetI(vOut, pPos); j != 0; j-- )
{
Vec_IntPush( pWL->vFanout, Vec_StrGetI(vOut, pPos) );
Vec_FltPush( pWL->vLen, Vec_StrGetF(vOut, pPos) );
}
}
// Read 'wire_load_sel' vector:
for ( i = Vec_StrGetI(vOut, pPos); i != 0; i-- )
{
SC_WireLoadSel * pWLS = Abc_SclWireLoadSelAlloc();
Vec_PtrPush( p->vWireLoadSels, pWLS );
pWLS->name = Vec_StrGetS(vOut, pPos);
for ( j = Vec_StrGetI(vOut, pPos); j != 0; j-- )
{
Vec_FltPush( pWLS->vAreaFrom, Vec_StrGetF(vOut, pPos) );
Vec_FltPush( pWLS->vAreaTo, Vec_StrGetF(vOut, pPos) );
Vec_PtrPush( pWLS->vWireLoadModel, Vec_StrGetS(vOut, pPos) );
}
}
for ( i = Vec_StrGetI(vOut, pPos); i != 0; i-- )
{
SC_Cell * pCell = Abc_SclCellAlloc();
Vec_PtrPush( p->vCells, pCell );
pCell->name = Vec_StrGetS(vOut, pPos);
pCell->area = Vec_StrGetF(vOut, pPos);
pCell->drive_strength = Vec_StrGetI(vOut, pPos);
pCell->n_inputs = Vec_StrGetI(vOut, pPos);
pCell->n_outputs = Vec_StrGetI(vOut, pPos);
for ( j = 0; j < pCell->n_inputs; j++ )
{
SC_Pin * pPin = Abc_SclPinAlloc();
Vec_PtrPush( pCell->vPins, pPin );
pPin->dir = sc_dir_Input;
pPin->name = Vec_StrGetS(vOut, pPos);
pPin->rise_cap = Vec_StrGetF(vOut, pPos);
pPin->fall_cap = Vec_StrGetF(vOut, pPos);
}
for ( j = 0; j < pCell->n_outputs; j++ )
{
SC_Pin * pPin = Abc_SclPinAlloc();
Vec_PtrPush( pCell->vPins, pPin );
pPin->dir = sc_dir_Output;
pPin->name = Vec_StrGetS(vOut, pPos);
pPin->max_out_cap = Vec_StrGetF(vOut, pPos);
pPin->max_out_slew = Vec_StrGetF(vOut, pPos);
k = Vec_StrGetI(vOut, pPos);
assert( k == pCell->n_inputs );
// read functions
assert( Vec_WrdSize(pPin->vFunc) == 0 );
Vec_WrdGrow( pPin->vFunc, Abc_Truth6WordNum(pCell->n_inputs) );
for ( k = 0; k < Vec_WrdCap(pPin->vFunc); k++ )
Vec_WrdPush( pPin->vFunc, Vec_StrGetW(vOut, pPos) );
// Read 'rtiming': (pin-to-pin timing tables for this particular output)
for ( k = 0; k < pCell->n_inputs; k++ )
{
SC_Timings * pRTime = Abc_SclTimingsAlloc();
Vec_PtrPush( pPin->vRTimings, pRTime );
pRTime->name = Vec_StrGetS(vOut, pPos);
n = Vec_StrGetI(vOut, pPos); assert( n <= 1 );
if ( n == 1 )
{
SC_Timing * pTime = Abc_SclTimingAlloc();
Vec_PtrPush( pRTime->vTimings, pTime );
pTime->tsense = (SC_TSense)Vec_StrGetI(vOut, pPos);
Abc_SclReadSurface( vOut, pPos, pTime->pCellRise );
Abc_SclReadSurface( vOut, pPos, pTime->pCellFall );
Abc_SclReadSurface( vOut, pPos, pTime->pRiseTrans );
Abc_SclReadSurface( vOut, pPos, pTime->pFallTrans );
}
else
assert( Vec_PtrSize(pPin->vRTimings) == 0 );
}
}
}
}
SC_Lib * Abc_SclRead( char * pFileName )
{
SC_Lib * p;
FILE * pFile;
Vec_Str_t * vOut;
int nFileSize, Pos = 0;
pFile = fopen( pFileName, "rb" );
if ( pFile == NULL )
{
printf( "Cannot open file \"%s\" for reading.\n", pFileName );
return NULL;
}
// get the file size, in bytes
fseek( pFile, 0, SEEK_END );
nFileSize = ftell( pFile );
rewind( pFile );
// load the contents
vOut = Vec_StrAlloc( nFileSize );
vOut->nSize = vOut->nCap;
assert( nFileSize == Vec_StrSize(vOut) );
nFileSize = fread( Vec_StrArray(vOut), 1, Vec_StrSize(vOut), pFile );
assert( nFileSize == Vec_StrSize(vOut) );
fclose( pFile );
// read the library
p = Abc_SclLibAlloc();
Abc_SclReadLibrary( vOut, &Pos, p );
assert( Pos == Vec_StrSize(vOut) );
Vec_StrFree( vOut );
// hash gates by name
Abc_SclHashGates( p );
return p;
}
void Abc_SclLoad( char * pFileName, void ** ppScl )
{
if ( *ppScl )
{
Abc_SclLibFree( *(SC_Lib **)ppScl );
*ppScl = NULL;
}
assert( *ppScl == NULL );
if ( pFileName )
*(SC_Lib **)ppScl = Abc_SclRead( pFileName );
}
/**Function*************************************************************
......@@ -152,24 +408,24 @@ static void Abc_SclWriteSurface( Vec_Str_t * vOut, SC_Surface * p )
float Entry;
int i, k;
Abc_SclPutI( vOut, Vec_FltSize(p->vIndex0) );
Vec_StrPutI( vOut, Vec_FltSize(p->vIndex0) );
Vec_FltForEachEntry( p->vIndex0, Entry, i )
Abc_SclPutF( vOut, Entry );
Vec_StrPutF( vOut, Entry );
Abc_SclPutI( vOut, Vec_FltSize(p->vIndex1) );
Vec_StrPutI( vOut, Vec_FltSize(p->vIndex1) );
Vec_FltForEachEntry( p->vIndex1, Entry, i )
Abc_SclPutF( vOut, Entry );
Vec_StrPutF( vOut, Entry );
Vec_PtrForEachEntry( Vec_Flt_t *, p->vData, vVec, i )
Vec_FltForEachEntry( vVec, Entry, k )
Abc_SclPutF( vOut, Entry );
Vec_StrPutF( vOut, Entry );
for ( i = 0; i < 3; i++ )
Abc_SclPutF( vOut, p->approx[0][i] );
Vec_StrPutF( vOut, p->approx[0][i] );
for ( i = 0; i < 4; i++ )
Abc_SclPutF( vOut, p->approx[1][i] );
Vec_StrPutF( vOut, p->approx[1][i] );
for ( i = 0; i < 6; i++ )
Abc_SclPutF( vOut, p->approx[2][i] );
Vec_StrPutF( vOut, p->approx[2][i] );
}
static void Abc_SclWriteLibrary( Vec_Str_t * vOut, SC_Lib * p )
{
......@@ -180,47 +436,47 @@ static void Abc_SclWriteLibrary( Vec_Str_t * vOut, SC_Lib * p )
int n_valid_cells;
int i, j, k;
Abc_SclPutI( vOut, ABC_SCL_CUR_VERSION );
Vec_StrPutI( vOut, ABC_SCL_CUR_VERSION );
// Write non-composite fields:
Abc_SclPutS( vOut, p->lib_name );
Abc_SclPutS( vOut, p->default_wire_load );
Abc_SclPutS( vOut, p->default_wire_load_sel );
Abc_SclPutF( vOut, p->default_max_out_slew );
Vec_StrPutS( vOut, p->lib_name );
Vec_StrPutS( vOut, p->default_wire_load );
Vec_StrPutS( vOut, p->default_wire_load_sel );
Vec_StrPutF( vOut, p->default_max_out_slew );
assert( p->unit_time >= 0 );
assert( p->unit_cap_snd >= 0 );
Abc_SclPutI( vOut, p->unit_time );
Abc_SclPutF( vOut, p->unit_cap_fst );
Abc_SclPutI( vOut, p->unit_cap_snd );
Vec_StrPutI( vOut, p->unit_time );
Vec_StrPutF( vOut, p->unit_cap_fst );
Vec_StrPutI( vOut, p->unit_cap_snd );
// Write 'wire_load' vector:
Abc_SclPutI( vOut, Vec_PtrSize(p->vWireLoads) );
Vec_StrPutI( vOut, Vec_PtrSize(p->vWireLoads) );
Vec_PtrForEachEntry( SC_WireLoad *, p->vWireLoads, pWL, i )
{
Abc_SclPutS( vOut, pWL->name );
Abc_SclPutF( vOut, pWL->res );
Abc_SclPutF( vOut, pWL->cap );
Vec_StrPutS( vOut, pWL->name );
Vec_StrPutF( vOut, pWL->res );
Vec_StrPutF( vOut, pWL->cap );
Abc_SclPutI( vOut, Vec_IntSize(pWL->vFanout) );
Vec_StrPutI( vOut, Vec_IntSize(pWL->vFanout) );
for ( j = 0; j < Vec_IntSize(pWL->vFanout); j++ )
{
Abc_SclPutI( vOut, Vec_IntEntry(pWL->vFanout, j) );
Abc_SclPutF( vOut, Vec_FltEntry(pWL->vLen, j) );
Vec_StrPutI( vOut, Vec_IntEntry(pWL->vFanout, j) );
Vec_StrPutF( vOut, Vec_FltEntry(pWL->vLen, j) );
}
}
// Write 'wire_load_sel' vector:
Abc_SclPutI( vOut, Vec_PtrSize(p->vWireLoadSels) );
Vec_StrPutI( vOut, Vec_PtrSize(p->vWireLoadSels) );
Vec_PtrForEachEntry( SC_WireLoadSel *, p->vWireLoadSels, pWLS, i )
{
Abc_SclPutS( vOut, pWLS->name );
Abc_SclPutI( vOut, Vec_FltSize(pWLS->vAreaFrom) );
Vec_StrPutS( vOut, pWLS->name );
Vec_StrPutI( vOut, Vec_FltSize(pWLS->vAreaFrom) );
for ( j = 0; j < Vec_FltSize(pWLS->vAreaFrom); j++)
{
Abc_SclPutF( vOut, Vec_FltEntry(pWLS->vAreaFrom, j) );
Abc_SclPutF( vOut, Vec_FltEntry(pWLS->vAreaTo, j) );
Abc_SclPutS( vOut, (char *)Vec_PtrEntry(pWLS->vWireLoadModel, j) );
Vec_StrPutF( vOut, Vec_FltEntry(pWLS->vAreaFrom, j) );
Vec_StrPutF( vOut, Vec_FltEntry(pWLS->vAreaTo, j) );
Vec_StrPutS( vOut, (char *)Vec_PtrEntry(pWLS->vWireLoadModel, j) );
}
}
......@@ -230,26 +486,26 @@ static void Abc_SclWriteLibrary( Vec_Str_t * vOut, SC_Lib * p )
if ( !(pCell->seq || pCell->unsupp) )
n_valid_cells++;
Abc_SclPutI( vOut, n_valid_cells );
Vec_StrPutI( vOut, n_valid_cells );
Vec_PtrForEachEntry( SC_Cell *, p->vCells, pCell, i )
{
if ( pCell->seq || pCell->unsupp )
continue;
Abc_SclPutS( vOut, pCell->name );
Abc_SclPutF( vOut, pCell->area );
Abc_SclPutI( vOut, pCell->drive_strength );
Vec_StrPutS( vOut, pCell->name );
Vec_StrPutF( vOut, pCell->area );
Vec_StrPutI( vOut, pCell->drive_strength );
// Write 'pins': (sorted at this point; first inputs, then outputs)
Abc_SclPutI( vOut, pCell->n_inputs);
Abc_SclPutI( vOut, pCell->n_outputs);
Vec_StrPutI( vOut, pCell->n_inputs);
Vec_StrPutI( vOut, pCell->n_outputs);
Vec_PtrForEachEntryStop( SC_Pin *, pCell->vPins, pPin, j, pCell->n_inputs )
{
assert(pPin->dir == sc_dir_Input);
Abc_SclPutS( vOut, pPin->name );
Abc_SclPutF( vOut, pPin->rise_cap );
Abc_SclPutF( vOut, pPin->fall_cap );
Vec_StrPutS( vOut, pPin->name );
Vec_StrPutF( vOut, pPin->rise_cap );
Vec_StrPutF( vOut, pPin->fall_cap );
}
Vec_PtrForEachEntryStart( SC_Pin *, pCell->vPins, pPin, j, pCell->n_inputs )
......@@ -258,22 +514,22 @@ static void Abc_SclWriteLibrary( Vec_Str_t * vOut, SC_Lib * p )
word uWord;
assert(pPin->dir == sc_dir_Output);
Abc_SclPutS( vOut, pPin->name );
Abc_SclPutF( vOut, pPin->max_out_cap );
Abc_SclPutF( vOut, pPin->max_out_slew );
Vec_StrPutS( vOut, pPin->name );
Vec_StrPutF( vOut, pPin->max_out_cap );
Vec_StrPutF( vOut, pPin->max_out_slew );
// write function
assert( Vec_WrdSize(pPin->vFunc) == Abc_Truth6WordNum(pCell->n_inputs) );
Abc_SclPutI( vOut, pCell->n_inputs );
Vec_StrPutI( vOut, pCell->n_inputs );
Vec_WrdForEachEntry( pPin->vFunc, uWord, k ) // -- 'size = 1u << (n_vars - 6)'
Abc_SclPutW( vOut, uWord ); // -- 64-bit number, written uncompressed (low-byte first)
Vec_StrPutW( vOut, uWord ); // -- 64-bit number, written uncompressed (low-byte first)
// Write 'rtiming': (pin-to-pin timing tables for this particular output)
assert( Vec_PtrSize(pPin->vRTimings) == pCell->n_inputs );
Vec_PtrForEachEntry( SC_Timings *, pPin->vRTimings, pRTime, k )
{
Abc_SclPutS( vOut, pRTime->name );
Abc_SclPutI( vOut, Vec_PtrSize(pRTime->vTimings) );
Vec_StrPutS( vOut, pRTime->name );
Vec_StrPutI( vOut, Vec_PtrSize(pRTime->vTimings) );
// -- NOTE! After post-processing, the size of the 'rtiming[k]' vector is either
// 0 or 1 (in static timing, we have merged all tables to get the worst case).
// The case with size 0 should only occur for multi-output gates.
......@@ -282,7 +538,7 @@ static void Abc_SclWriteLibrary( Vec_Str_t * vOut, SC_Lib * p )
SC_Timing * pTime = (SC_Timing *)Vec_PtrEntry( pRTime->vTimings, 0 );
// -- NOTE! We don't need to save 'related_pin' string because we have sorted
// the elements on input pins.
Abc_SclPutI( vOut, (int)pTime->tsense);
Vec_StrPutI( vOut, (int)pTime->tsense);
Abc_SclWriteSurface( vOut, pTime->pCellRise );
Abc_SclWriteSurface( vOut, pTime->pCellFall );
Abc_SclWriteSurface( vOut, pTime->pRiseTrans );
......@@ -321,7 +577,7 @@ void Abc_SclSave( char * pFileName, void * pScl )
/**Function*************************************************************
Synopsis [Reading library from file.]
Synopsis [Writing library into text file.]
Description []
......@@ -330,188 +586,213 @@ void Abc_SclSave( char * pFileName, void * pScl )
SeeAlso []
***********************************************************************/
static void Abc_SclReadSurface( Vec_Str_t * vOut, int * pPos, SC_Surface * p )
static void Abc_SclWriteSurfaceText( FILE * s, SC_Surface * p )
{
Vec_Flt_t * vVec;
int i, j;
float Entry;
int i, k;
fprintf( s, "Surface:\n" );
for ( i = Abc_SclGetI(vOut, pPos); i != 0; i-- )
Vec_FltPush( p->vIndex0, Abc_SclGetF(vOut, pPos) );
fprintf( s, "%d", Vec_FltSize(p->vIndex0) );
fprintf( s, "\n" );
Vec_FltForEachEntry( p->vIndex0, Entry, i )
fprintf( s, "%f ", Entry );
fprintf( s, "\n" );
for ( i = Abc_SclGetI(vOut, pPos); i != 0; i-- )
Vec_FltPush( p->vIndex1, Abc_SclGetF(vOut, pPos) );
fprintf( s, "%d", Vec_FltSize(p->vIndex1) );
fprintf( s, "\n" );
Vec_FltForEachEntry( p->vIndex1, Entry, i )
fprintf( s, "%f ", Entry );
fprintf( s, "\n" );
for ( i = 0; i < Vec_FltSize(p->vIndex0); i++ )
Vec_PtrForEachEntry( Vec_Flt_t *, p->vData, vVec, i )
{
vVec = Vec_FltAlloc( Vec_FltSize(p->vIndex1) );
Vec_PtrPush( p->vData, vVec );
for ( j = 0; j < Vec_FltSize(p->vIndex1); j++ )
Vec_FltPush( vVec, Abc_SclGetF(vOut, pPos) );
Vec_FltForEachEntry( vVec, Entry, k )
fprintf( s, "%f ", Entry );
fprintf( s, "\n" );
}
for ( i = 0; i < 3; i++ )
p->approx[0][i] = Abc_SclGetF( vOut, pPos );
fprintf( s, "%f ", p->approx[0][i] );
fprintf( s, "\n" );
for ( i = 0; i < 4; i++ )
p->approx[1][i] = Abc_SclGetF( vOut, pPos );
fprintf( s, "%f ", p->approx[1][i] );
fprintf( s, "\n" );
for ( i = 0; i < 6; i++ )
p->approx[2][i] = Abc_SclGetF( vOut, pPos );
fprintf( s, "%f ", p->approx[2][i] );
fprintf( s, "\n" );
}
static void Abc_SclReadLibrary( Vec_Str_t * vOut, int * pPos, SC_Lib * p )
static void Abc_SclWriteLibraryText( FILE * s, SC_Lib * p )
{
int i, j, k, n;
int version = Abc_SclGetI( vOut, pPos );
assert( version == ABC_SCL_CUR_VERSION ); // wrong version of the file
// Read non-composite fields:
p->lib_name = Abc_SclGetS(vOut, pPos);
p->default_wire_load = Abc_SclGetS(vOut, pPos);
p->default_wire_load_sel = Abc_SclGetS(vOut, pPos);
p->default_max_out_slew = Abc_SclGetF(vOut, pPos);
SC_WireLoad * pWL;
SC_WireLoadSel * pWLS;
SC_Cell * pCell;
SC_Pin * pPin;
int n_valid_cells;
int i, j, k;
p->unit_time = Abc_SclGetI(vOut, pPos);
p->unit_cap_fst = Abc_SclGetF(vOut, pPos);
p->unit_cap_snd = Abc_SclGetI(vOut, pPos);
// fprintf( s, "%d", ABC_SCL_CUR_VERSION );
fprintf( s, "Liberty:\n" );
// Read 'wire_load' vector:
for ( i = Abc_SclGetI(vOut, pPos); i != 0; i-- )
{
SC_WireLoad * pWL = Abc_SclWireLoadAlloc();
Vec_PtrPush( p->vWireLoads, pWL );
// Write non-composite fields:
fprintf( s, "%s", p->lib_name );
fprintf( s, "\n" );
fprintf( s, "%s", p->default_wire_load );
fprintf( s, "\n" );
fprintf( s, "%s", p->default_wire_load_sel );
fprintf( s, "\n" );
fprintf( s, "%f", p->default_max_out_slew );
fprintf( s, "\n" );
pWL->name = Abc_SclGetS(vOut, pPos);
pWL->res = Abc_SclGetF(vOut, pPos);
pWL->cap = Abc_SclGetF(vOut, pPos);
assert( p->unit_time >= 0 );
assert( p->unit_cap_snd >= 0 );
fprintf( s, "%d", p->unit_time );
fprintf( s, "\n" );
fprintf( s, "%f", p->unit_cap_fst );
fprintf( s, "\n" );
fprintf( s, "%d", p->unit_cap_snd );
fprintf( s, "\n" );
for ( j = Abc_SclGetI(vOut, pPos); j != 0; j-- )
// Write 'wire_load' vector:
fprintf( s, "\n" );
fprintf( s, "%d", Vec_PtrSize(p->vWireLoads) );
fprintf( s, "\n" );
Vec_PtrForEachEntry( SC_WireLoad *, p->vWireLoads, pWL, i )
{
fprintf( s, "WireLoad:\n" );
fprintf( s, "%s ", pWL->name );
fprintf( s, "%f ", pWL->res );
fprintf( s, "%f", pWL->cap );
fprintf( s, "\n" );
fprintf( s, "%d", Vec_IntSize(pWL->vFanout) );
fprintf( s, "\n" );
for ( j = 0; j < Vec_IntSize(pWL->vFanout); j++ )
{
Vec_IntPush( pWL->vFanout, Abc_SclGetI(vOut, pPos) );
Vec_FltPush( pWL->vLen, Abc_SclGetF(vOut, pPos) );
fprintf( s, "%d ", Vec_IntEntry(pWL->vFanout, j) );
fprintf( s, "%f ", Vec_FltEntry(pWL->vLen, j) );
}
fprintf( s, "\n" );
}
fprintf( s, "\n" );
// Read 'wire_load_sel' vector:
for ( i = Abc_SclGetI(vOut, pPos); i != 0; i-- )
// Write 'wire_load_sel' vector:
fprintf( s, "%d", Vec_PtrSize(p->vWireLoadSels) );
fprintf( s, "\n" );
Vec_PtrForEachEntry( SC_WireLoadSel *, p->vWireLoadSels, pWLS, i )
{
SC_WireLoadSel * pWLS = Abc_SclWireLoadSelAlloc();
Vec_PtrPush( p->vWireLoadSels, pWLS );
pWLS->name = Abc_SclGetS(vOut, pPos);
for ( j = Abc_SclGetI(vOut, pPos); j != 0; j-- )
fprintf( s, "WireLoadSel:\n" );
fprintf( s, "%s", pWLS->name );
fprintf( s, "\n" );
fprintf( s, "%d", Vec_FltSize(pWLS->vAreaFrom) );
fprintf( s, "\n" );
for ( j = 0; j < Vec_FltSize(pWLS->vAreaFrom); j++)
{
Vec_FltPush( pWLS->vAreaFrom, Abc_SclGetF(vOut, pPos) );
Vec_FltPush( pWLS->vAreaTo, Abc_SclGetF(vOut, pPos) );
Vec_PtrPush( pWLS->vWireLoadModel, Abc_SclGetS(vOut, pPos) );
fprintf( s, "%f", Vec_FltEntry(pWLS->vAreaFrom, j) );
fprintf( s, " " );
fprintf( s, "%f", Vec_FltEntry(pWLS->vAreaTo, j) );
fprintf( s, " " );
fprintf( s, "%s", (char *)Vec_PtrEntry(pWLS->vWireLoadModel, j) );
fprintf( s, "\n" );
}
}
fprintf( s, "\n" );
// Write 'cells' vector:
n_valid_cells = 0;
Vec_PtrForEachEntry( SC_Cell *, p->vCells, pCell, i )
if ( !(pCell->seq || pCell->unsupp) )
n_valid_cells++;
for ( i = Abc_SclGetI(vOut, pPos); i != 0; i-- )
fprintf( s, "%d", n_valid_cells );
fprintf( s, "\n" );
Vec_PtrForEachEntry( SC_Cell *, p->vCells, pCell, i )
{
SC_Cell * pCell = Abc_SclCellAlloc();
Vec_PtrPush( p->vCells, pCell );
if ( pCell->seq || pCell->unsupp )
continue;
pCell->name = Abc_SclGetS(vOut, pPos);
pCell->area = Abc_SclGetF(vOut, pPos);
pCell->drive_strength = Abc_SclGetI(vOut, pPos);
fprintf( s, "\nCell:\n" );
fprintf( s, "%s ", pCell->name );
fprintf( s, "%f ", pCell->area );
fprintf( s, "%d", pCell->drive_strength );
fprintf( s, " " );
pCell->n_inputs = Abc_SclGetI(vOut, pPos);
pCell->n_outputs = Abc_SclGetI(vOut, pPos);
// Write 'pins': (sorted at this point; first inputs, then outputs)
fprintf( s, "%d ", pCell->n_inputs);
fprintf( s, "%d", pCell->n_outputs);
fprintf( s, "\n" );
for ( j = 0; j < pCell->n_inputs; j++ )
Vec_PtrForEachEntryStop( SC_Pin *, pCell->vPins, pPin, j, pCell->n_inputs )
{
SC_Pin * pPin = Abc_SclPinAlloc();
Vec_PtrPush( pCell->vPins, pPin );
pPin->dir = sc_dir_Input;
pPin->name = Abc_SclGetS(vOut, pPos);
pPin->rise_cap = Abc_SclGetF(vOut, pPos);
pPin->fall_cap = Abc_SclGetF(vOut, pPos);
assert(pPin->dir == sc_dir_Input);
fprintf( s, "Pin:\n" );
fprintf( s, "%s ", pPin->name );
fprintf( s, "%f ", pPin->rise_cap );
fprintf( s, "%f", pPin->fall_cap );
fprintf( s, "\n" );
}
for ( j = 0; j < pCell->n_outputs; j++ )
Vec_PtrForEachEntryStart( SC_Pin *, pCell->vPins, pPin, j, pCell->n_inputs )
{
SC_Pin * pPin = Abc_SclPinAlloc();
Vec_PtrPush( pCell->vPins, pPin );
pPin->dir = sc_dir_Output;
pPin->name = Abc_SclGetS(vOut, pPos);
pPin->max_out_cap = Abc_SclGetF(vOut, pPos);
pPin->max_out_slew = Abc_SclGetF(vOut, pPos);
k = Abc_SclGetI(vOut, pPos);
assert( k == pCell->n_inputs );
SC_Timings * pRTime;
// word uWord;
assert(pPin->dir == sc_dir_Output);
// read functions
assert( Vec_WrdSize(pPin->vFunc) == 0 );
Vec_WrdGrow( pPin->vFunc, Abc_Truth6WordNum(pCell->n_inputs) );
for ( k = 0; k < Vec_WrdCap(pPin->vFunc); k++ )
Vec_WrdPush( pPin->vFunc, Abc_SclGetW(vOut, pPos) );
fprintf( s, "Pin:\n" );
fprintf( s, "%s ", pPin->name );
fprintf( s, "%f ", pPin->max_out_cap );
fprintf( s, "%f", pPin->max_out_slew );
fprintf( s, "\n" );
/*
// write function
assert( Vec_WrdSize(pPin->vFunc) == Abc_Truth6WordNum(pCell->n_inputs) );
fprintf( s, "%d", pCell->n_inputs );
Vec_WrdForEachEntry( pPin->vFunc, uWord, k ) // -- 'size = 1u << (n_vars - 6)'
Vec_StrPutW( s, uWord ); // -- 64-bit number, written uncompressed (low-byte first)
*/
Extra_PrintHex( s, (unsigned *)Vec_WrdArray(pPin->vFunc), pCell->n_inputs );
fprintf( s, "\n" );
// Read 'rtiming': (pin-to-pin timing tables for this particular output)
for ( k = 0; k < pCell->n_inputs; k++ )
// Write 'rtiming': (pin-to-pin timing tables for this particular output)
assert( Vec_PtrSize(pPin->vRTimings) == pCell->n_inputs );
Vec_PtrForEachEntry( SC_Timings *, pPin->vRTimings, pRTime, k )
{
SC_Timings * pRTime = Abc_SclTimingsAlloc();
Vec_PtrPush( pPin->vRTimings, pRTime );
pRTime->name = Abc_SclGetS(vOut, pPos);
n = Abc_SclGetI(vOut, pPos); assert( n <= 1 );
if ( n == 1 )
fprintf( s, "%s ", pRTime->name );
fprintf( s, "%d", Vec_PtrSize(pRTime->vTimings) );
fprintf( s, "\n" );
// -- NOTE! After post-processing, the size of the 'rtiming[k]' vector is either
// 0 or 1 (in static timing, we have merged all tables to get the worst case).
// The case with size 0 should only occur for multi-output gates.
if ( Vec_PtrSize(pRTime->vTimings) == 1 )
{
SC_Timing * pTime = Abc_SclTimingAlloc();
Vec_PtrPush( pRTime->vTimings, pTime );
pTime->tsense = (SC_TSense)Abc_SclGetI(vOut, pPos);
Abc_SclReadSurface( vOut, pPos, pTime->pCellRise );
Abc_SclReadSurface( vOut, pPos, pTime->pCellFall );
Abc_SclReadSurface( vOut, pPos, pTime->pRiseTrans );
Abc_SclReadSurface( vOut, pPos, pTime->pFallTrans );
SC_Timing * pTime = (SC_Timing *)Vec_PtrEntry( pRTime->vTimings, 0 );
// -- NOTE! We don't need to save 'related_pin' string because we have sorted
// the elements on input pins.
fprintf( s, "%d", (int)pTime->tsense);
fprintf( s, "\n" );
Abc_SclWriteSurfaceText( s, pTime->pCellRise );
Abc_SclWriteSurfaceText( s, pTime->pCellFall );
Abc_SclWriteSurfaceText( s, pTime->pRiseTrans );
Abc_SclWriteSurfaceText( s, pTime->pFallTrans );
}
else
assert( Vec_PtrSize(pPin->vRTimings) == 0 );
assert( Vec_PtrSize(pRTime->vTimings) == 0 );
}
}
fprintf( s, "\n" );
}
}
SC_Lib * Abc_SclRead( char * pFileName )
void Abc_SclWriteText( char * pFileName, SC_Lib * p )
{
SC_Lib * p;
FILE * pFile;
Vec_Str_t * vOut;
int nFileSize, Pos = 0;
pFile = fopen( pFileName, "rb" );
FILE * pFile = fopen( pFileName, "wb" );
if ( pFile == NULL )
printf( "Cannot open text file \"%s\" for writing.\n", pFileName );
else
{
printf( "Cannot open file \"%s\" for reading.\n", pFileName );
return NULL;
}
// get the file size, in bytes
fseek( pFile, 0, SEEK_END );
nFileSize = ftell( pFile );
rewind( pFile );
// load the contents
vOut = Vec_StrAlloc( nFileSize );
vOut->nSize = vOut->nCap;
assert( nFileSize == Vec_StrSize(vOut) );
nFileSize = fread( Vec_StrArray(vOut), 1, Vec_StrSize(vOut), pFile );
assert( nFileSize == Vec_StrSize(vOut) );
fclose( pFile );
// read the library
p = Abc_SclLibAlloc();
Abc_SclReadLibrary( vOut, &Pos, p );
assert( Pos == Vec_StrSize(vOut) );
Vec_StrFree( vOut );
return p;
}
void Abc_SclLoad( char * pFileName, void ** ppScl )
{
if ( *ppScl )
{
Abc_SclLibFree( *(SC_Lib **)ppScl );
*ppScl = NULL;
Abc_SclWriteLibraryText( pFile, p );
fclose( pFile );
}
assert( *ppScl == NULL );
if ( pFileName )
*(SC_Lib **)ppScl = Abc_SclRead( pFileName );
}
......
src/map/scl/sclInt.h
......@@ -159,7 +159,9 @@ struct SC_Lib_
Vec_Ptr_t * vWireLoads; // NamedSet<SC_WireLoad>
Vec_Ptr_t * vWireLoadSels; // NamedSet<SC_WireLoadSel>
Vec_Ptr_t * vTempls; // NamedSet<SC_TableTempl>
Vec_Ptr_t * vCells; // NamedSet<SC_Cell>
Vec_Ptr_t * vCells; // NamedSet<SC_Cell>
int * pBins; // hashing gateName -> gateId
int nBins;
};
////////////////////////////////////////////////////////////////////////
......@@ -170,6 +172,9 @@ struct SC_Lib_
/// MACRO DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
static inline SC_Cell * SC_LibCell( SC_Lib * p, int i ) { return (SC_Cell *)Vec_PtrEntry(p->vCells, i); }
static inline SC_Pin * SC_CellPin( SC_Cell * p, int i ) { return (SC_Pin *)Vec_PtrEntry(p->vPins, i); }
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
......@@ -351,11 +356,18 @@ static inline void Abc_SclLibFree( SC_Lib * p )
ABC_FREE( p->lib_name );
ABC_FREE( p->default_wire_load );
ABC_FREE( p->default_wire_load_sel );
ABC_FREE( p->pBins );
ABC_FREE( p );
}
/*=== scl.c =============================================================*/
/*=== sclFile.c =============================================================*/
extern SC_Lib * Abc_SclRead( char * pFileName );
extern void Abc_SclWrite( char * pFileName, SC_Lib * p );
extern void Abc_SclWriteText( char * pFileName, SC_Lib * p );
extern int Abc_SclCellFind( SC_Lib * p, char * pName );
ABC_NAMESPACE_HEADER_END
......
src/map/scl/sclSize.c
......@@ -41,6 +41,7 @@ ABC_NAMESPACE_IMPL_START
***********************************************************************/
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
......
src/map/scl/sclTime.c
......@@ -16,6 +16,8 @@
***********************************************************************/
#include "base/abc/abc.h"
#include "map/mio/mio.h"
#include "sclInt.h"
ABC_NAMESPACE_IMPL_START
......@@ -25,12 +27,297 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
typedef struct SC_Pair_ SC_Pair;
typedef struct SC_Man_ SC_Man;
struct SC_Pair_
{
float rise;
float fall;
};
struct SC_Man_
{
SC_Lib * pLib; // library
Abc_Ntk_t * pNtk; // network
int nObjs; // allocated size
Vec_Int_t * vGates; // mapping of objId into gateId
SC_Pair * pLoads; // loads for each gate
SC_Pair * pArrs; // arrivals for each gate
SC_Pair * pSlews; // slews for each gate
char * pWireLoadUsed; // name of the used WireLoad model
};
static inline SC_Pair * Abc_SclObjLoad( SC_Man * p, Abc_Obj_t * pObj ) { return p->pLoads + Abc_ObjId(pObj); }
static inline SC_Pair * Abc_SclObjArr ( SC_Man * p, Abc_Obj_t * pObj ) { return p->pArrs + Abc_ObjId(pObj); }
static inline SC_Pair * Abc_SclObjSlew( SC_Man * p, Abc_Obj_t * pObj ) { return p->pSlews + Abc_ObjId(pObj); }
static inline SC_Cell * Abc_SclObjCell( SC_Man * p, Abc_Obj_t * pObj ) { return SC_LibCell( p->pLib, Vec_IntEntry(p->vGates, Abc_ObjId(pObj)) ); }
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Prepares STA manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_SclManFindGates( SC_Man * p )
{
Abc_Obj_t * pObj;
char * pName;
int i, gateId;
assert( p->vGates == NULL );
p->vGates = Vec_IntStartFull( p->nObjs );
Abc_NtkForEachNode( p->pNtk, pObj, i )
{
pName = Mio_GateReadName((Mio_Gate_t *)pObj->pData);
gateId = Abc_SclCellFind( p->pLib, pName );
assert( gateId >= 0 );
Vec_IntWriteEntry( p->vGates, i, gateId );
}
}
SC_Man * Abc_SclManAlloc( SC_Lib * pLib, Abc_Ntk_t * pNtk )
{
SC_Man * p;
assert( Abc_NtkHasMapping(pNtk) );
p = ABC_CALLOC( SC_Man, 1 );
p->pLib = pLib;
p->pNtk = pNtk;
p->nObjs = Abc_NtkObjNumMax(pNtk);
p->pLoads = ABC_CALLOC( SC_Pair, p->nObjs );
p->pArrs = ABC_CALLOC( SC_Pair, p->nObjs );
p->pSlews = ABC_CALLOC( SC_Pair, p->nObjs );
Abc_SclManFindGates( p );
return p;
}
void Abc_SclManFree( SC_Man * p )
{
Vec_IntFree( p->vGates );
ABC_FREE( p->pLoads );
ABC_FREE( p->pArrs );
ABC_FREE( p->pSlews );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
float Abc_SclTotalArea( SC_Man * p, Vec_Ptr_t * vNodes )
{
double Area = 0;
Abc_Obj_t * pObj;
int i;
Vec_PtrForEachEntry( Abc_Obj_t *, vNodes, pObj, i )
Area += Abc_SclObjCell( p, pObj )->area;
return Area;
}
Vec_Flt_t * Abc_SclFindWireCaps( SC_Man * p, Vec_Ptr_t * vNodes )
{
Vec_Flt_t * vCaps = NULL;
SC_WireLoad * pWL;
int i, Entry, EntryPrev, EntryMax;
p->pWireLoadUsed = NULL;
if ( p->pLib->default_wire_load_sel )
{
float Area;
SC_WireLoadSel * pWLS = NULL;
Vec_PtrForEachEntry( SC_WireLoadSel *, p->pLib->vWireLoadSels, pWLS, i )
if ( !strcmp(pWLS->name, p->pLib->default_wire_load_sel) )
break;
if ( i == Vec_PtrSize(p->pLib->vWireLoadSels) )
{
Abc_Print( -1, "Cannot find wire load selection model \"%s\".\n", p->pLib->default_wire_load_sel );
exit(1);
}
Area = (float)Abc_SclTotalArea( p, vNodes );
for ( i = 0; i < Vec_FltSize(pWLS->vAreaFrom); i++)
if ( Area >= Vec_FltEntry(pWLS->vAreaFrom, i) && Area < Vec_FltEntry(pWLS->vAreaTo, i) )
{
p->pWireLoadUsed = (char *)Vec_PtrEntry(pWLS->vWireLoadModel, i);
break;
}
if ( i == Vec_FltSize(pWLS->vAreaFrom) )
p->pWireLoadUsed = (char *)Vec_PtrEntryLast(pWLS->vWireLoadModel);
}
else if ( p->pLib->default_wire_load )
p->pWireLoadUsed = p->pLib->default_wire_load;
else
{
Abc_Print( 0, "No wire model given.\n" );
return NULL;
}
// Get the actual table and reformat it for 'wire_cap' output:
assert( p->pWireLoadUsed != NULL );
Vec_PtrForEachEntry( SC_WireLoad *, p->pLib->vWireLoads, pWL, i )
if ( !strcmp(pWL->name, p->pWireLoadUsed) )
break;
if ( i == Vec_PtrSize(p->pLib->vWireLoadSels) )
{
Abc_Print( -1, "Cannot find wire load model \"%s\".\n", p->pWireLoadUsed );
exit(1);
}
// find the biggest fanout
EntryMax = 0;
Vec_IntForEachEntry( pWL->vFanout, Entry, i )
EntryMax = Abc_MaxInt( EntryMax, Entry );
// create the array
vCaps = Vec_FltStart( EntryMax + 1 );
Vec_IntForEachEntry( pWL->vFanout, Entry, i )
Vec_FltWriteEntry( vCaps, Entry, Vec_FltEntry(pWL->vLen, i) * pWL->cap );
// reformat
EntryPrev = 0;
Vec_FltForEachEntry( vCaps, Entry, i )
{
if ( Entry )
EntryPrev = Entry;
else
Vec_FltWriteEntry( vCaps, i, EntryPrev );
}
return vCaps;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline float Abc_SclLookup( SC_Surface * p, float slew, float load )
{
float * pIndex0, * pIndex1, * pDataS, * pDataS1;
float sfrac, lfrac, p0, p1;
int s, l;
// Find closest sample points in surface:
pIndex0 = Vec_FltArray(p->vIndex0);
for ( s = 1; s < Vec_FltSize(p->vIndex0)-1; s++ )
if ( pIndex0[s] > slew )
break;
s--;
pIndex1 = Vec_FltArray(p->vIndex1);
for ( l = 1; l < Vec_FltSize(p->vIndex1)-1; l++ )
if ( pIndex1[l] > load )
break;
l--;
// Interpolate (or extrapolate) function value from sample points:
sfrac = (slew - pIndex0[s]) / (pIndex0[s+1] - pIndex0[s]);
lfrac = (load - pIndex1[l]) / (pIndex1[l+1] - pIndex1[l]);
pDataS = Vec_FltArray( (Vec_Flt_t *)Vec_PtrEntry(p->vData, s) );
pDataS1 = Vec_FltArray( (Vec_Flt_t *)Vec_PtrEntry(p->vData, s+1) );
p0 = pDataS [l] + lfrac * (pDataS [l+1] - pDataS [l]);
p1 = pDataS1[l] + lfrac * (pDataS1[l+1] - pDataS1[l]);
return p0 + sfrac * (p1 - p0); // <<== multiply result with K factor here
}
void Abc_SclTimeGate( SC_Man * p, SC_Timing * pTime, Abc_Obj_t * pObj, Abc_Obj_t * pFanin )
{
SC_Pair * pArrIn = Abc_SclObjLoad( p, pFanin );
SC_Pair * pSlewIn = Abc_SclObjLoad( p, pFanin );
SC_Pair * pLoad = Abc_SclObjLoad( p, pObj );
SC_Pair * pArrOut = Abc_SclObjLoad( p, pObj ); // modified
SC_Pair * pSlewOut = Abc_SclObjLoad( p, pObj ); // modified
if (pTime->tsense == sc_ts_Pos || pTime->tsense == sc_ts_Non)
{
pArrOut->rise = Abc_MaxInt( pArrOut->rise, pArrIn->rise + Abc_SclLookup(pTime->pCellRise, pSlewIn->rise, pLoad->rise) );
pArrOut->fall = Abc_MaxInt( pArrOut->fall, pArrIn->fall + Abc_SclLookup(pTime->pCellFall, pSlewIn->fall, pLoad->fall) );
pSlewOut->rise = Abc_MaxInt( pSlewOut->rise, Abc_SclLookup(pTime->pRiseTrans, pSlewIn->rise, pLoad->rise) );
pSlewOut->fall = Abc_MaxInt( pSlewOut->fall, Abc_SclLookup(pTime->pFallTrans, pSlewIn->fall, pLoad->fall) );
}
if (pTime->tsense == sc_ts_Neg || pTime->tsense == sc_ts_Non)
{
pArrOut->rise = Abc_MaxInt( pArrOut->rise, pArrIn->fall + Abc_SclLookup(pTime->pCellRise, pSlewIn->fall, pLoad->rise) );
pArrOut->fall = Abc_MaxInt( pArrOut->fall, pArrIn->rise + Abc_SclLookup(pTime->pCellFall, pSlewIn->rise, pLoad->fall) );
pSlewOut->rise = Abc_MaxInt( pSlewOut->rise, Abc_SclLookup(pTime->pRiseTrans, pSlewIn->fall, pLoad->rise) );
pSlewOut->fall = Abc_MaxInt( pSlewOut->fall, Abc_SclLookup(pTime->pFallTrans, pSlewIn->rise, pLoad->fall) );
}
}
void Abc_SclComputeLoad( SC_Man * p, Vec_Ptr_t * vNodes, Vec_Flt_t * vWireCaps )
{
Abc_Obj_t * pObj, * pFanin;
int i, k;
Vec_PtrForEachEntry( Abc_Obj_t *, vNodes, pObj, i )
{
SC_Cell * pCell = Abc_SclObjCell( p, pObj );
Abc_ObjForEachFanin( pObj, pFanin, k )
{
SC_Pin * pPin = SC_CellPin( pCell, k );
SC_Pair * pLoad = Abc_SclObjLoad( p, pFanin );
pLoad->rise += pPin->rise_cap;
pLoad->fall += pPin->fall_cap;
}
}
if ( vWireCaps )
{
Vec_PtrForEachEntry( Abc_Obj_t *, vNodes, pObj, i )
{
SC_Pair * pLoad = Abc_SclObjLoad( p, pObj );
k = Abc_MinInt( Vec_FltSize(vWireCaps)-1, Abc_ObjFanoutNum(pObj) );
pLoad->rise += Vec_FltEntry(vWireCaps, k);
pLoad->fall += Vec_FltEntry(vWireCaps, k);
}
}
}
void Abc_SclTimeNtk( SC_Man * p )
{
Vec_Flt_t * vWireCaps;
Vec_Ptr_t * vNodes;
Abc_Obj_t * pObj;
int i, k;
vNodes = Abc_NtkDfs( p->pNtk, 0 );
vWireCaps = Abc_SclFindWireCaps( p, vNodes );
Abc_SclComputeLoad( p, vNodes, vWireCaps );
Vec_PtrForEachEntry( Abc_Obj_t *, vNodes, pObj, i )
{
SC_Timings * pRTime;
SC_Timing * pTime;
SC_Pin * pPin;
// get the library cell
SC_Cell * pCell = Abc_SclObjCell( p, pObj );
// get the output pin
assert( pCell->n_outputs == 1 );
pPin = SC_CellPin( pCell, pCell->n_inputs );
// compute timing using each fanin
assert( Vec_PtrSize(pPin->vRTimings) == pCell->n_inputs );
Vec_PtrForEachEntry( SC_Timings *, pPin->vRTimings, pRTime, k )
{
assert( Vec_PtrSize(pRTime->vTimings) == 1 );
pTime = (SC_Timing *)Vec_PtrEntry( pRTime->vTimings, 0 );
Abc_SclTimeGate( p, pTime, pObj, Abc_ObjFanin(pObj, k) );
}
}
Vec_PtrFree( vNodes );
}
/**Function*************************************************************
Synopsis []
Description []
......@@ -40,6 +327,30 @@ ABC_NAMESPACE_IMPL_START
SeeAlso []
***********************************************************************/
void Abc_SclTimeNtkPrint( SC_Man * p )
{
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_SclTimePerform( SC_Lib * pLib, void * pNtk )
{
SC_Man * p;
p = Abc_SclManAlloc( pLib, (Abc_Ntk_t *)pNtk );
Abc_SclTimeNtk( p );
Abc_SclTimeNtkPrint( p );
Abc_SclManFree( p );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
......
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